*SUPPORT*
IN: tufa gazzer OUT: PURPLE RED
IN: tufa dax wif OUT: PURPLE PURPLE GREEN
IN: gazzer OUT: RED
IN: gazzer kiki tufa OUT: PURPLE RED PURPLE
IN: zup dax zup OUT: BLUE BLUE BLUE
IN: gazzer kiki wif OUT: GREEN RED GREEN
IN: zup fep gazzer OUT: BLUE BLUE RED RED
IN: tufa kiki gazzer OUT: RED PURPLE RED
IN: tufa dax zup OUT: PURPLE PURPLE BLUE
IN: tufa wif dax tufa OUT: PURPLE GREEN GREEN PURPLE
IN: wif gazzer OUT: GREEN RED
IN: wif dax gazzer OUT: GREEN GREEN RED
IN: gazzer kiki zup dax tufa OUT: BLUE BLUE PURPLE RED BLUE BLUE PURPLE
IN: wif dax zup OUT: GREEN GREEN BLUE

*QUERY*
IN: wif OUT: GREEN
IN: zup gazzer OUT: BLUE RED
IN: zup OUT: BLUE
IN: zup dax gazzer OUT: BLUE BLUE RED
IN: wif dax wif OUT: GREEN GREEN GREEN
IN: zup kiki tufa dax zup OUT: PURPLE PURPLE BLUE BLUE PURPLE PURPLE BLUE
IN: wif dax tufa OUT: GREEN GREEN PURPLE
IN: gazzer kiki gazzer OUT: RED RED RED
IN: tufa zup zup OUT: PURPLE BLUE BLUE
IN: tufa OUT: PURPLE

*GRAMMAR*
tufa -> PURPLE 
 wif -> GREEN 
 gazzer -> RED 
 zup -> BLUE 
 x1 fep x2 -> [x1] [x1] [x2] [x2] 
 u1 dax u2 -> [u1] [u1] [u2] 
 u1 kiki x1 -> [x1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 